Structure of PDB 7wtm Chain CA Binding Site BS01

Receptor Information

>7wtm Chain CA (length=181) Species: 4932 (Saccharomyces cerevisiae)

KFESRKIMVPPHRMTPLRNSWTKIYPPLVEHLKLQVRMNLKTKSVELRTN
PKFTTDPGALQKGADFIKAFTLGFDLDDSIALLRLDDLYIETFEVKDVKT
LTGDHLSRAIGRIAGKDGKTKFAIENATRTRIVLADSKIHILGGFTHIRM
ARESVVSLILGSPPGKVYGNLRTVASRLKER

Ligand information

>7wtm Chain C2 (length=1106)

uaucugguugauccugccaguagucauaugcuugucucaaagauuaagcc
augcaugucuaaguauaagcaaauacagugaaacugcgaauggcucauua
aaucaguuaucguuuauuugauaguuccucuacaugguauaacuguggua
auucuagagcuaauacaugcuuaaaaucucgacccuuuggaagagaugua
uuuauuagauaaaaaaucaaugucuucggacucuuugaugauucauaaua
acuuuucgaaucgcauggccuugugcuggcgaugguucauucaaauuucu
gcccuaucaacuuucgaugguaggauaguggccuaccaugguuucaacgg
guaacggggaauaaggguucgauuccggagagggagccugagaaacggcu
accacauccaaggaaggcagcaggcgcgcaaauuacccaauccuaauuca
gggagguagugacaauaaauaacgauacagggucuuguaauuggaaugag
uacaauguaaauaccuuaacgaggaacaauuggagggcaagucuggugcc
agcagccgcgguaauuccagcuccaauagcguauauuaaaguuguugcag
uuaaaaagcucguaguugaacuuugggcccgguuaacggggccuuuccuu
cuggcuaaaccaggacuuuuacuuugaaaaaauuagaguguucaaagcag
gcguauugcucgaauauauuagcauggaauaauagaauaggacguuuggu
ucuauuuuguugguuucuaggaccaucguaaugauuaauagggacggucg
ggggcaucaguauucaauugucagaggugaaauucuuggauuuauugaag
acuaacuacugcgaaagcauuugccaaggacguuuucauuaaucaagaac
gaaaguuaggggaucgaagaugaucagauaccgucguagucuuaaccaua
aacuaugccgacuagggaucgggugguguuuuuuuaaugacccacucggc
accuuacgagaaaucaaagucuuuggguucuggggggaguauggucgcaa
ggcugaaacuuaaaggaauugagguuuccguaggugaaccugcggaagga
ucauua

...<<<<....[[[[.>>>>[[[[.((((((................[[[
.[[[..<<....<<....<<.......>>...>>.>>......{{.....
...[[[..{{..{{....[[[...............<<....<<.<<...
....>>.>>.....>>.........<<<<<..<<....>>..>>>>>[..
.((((((......<<<<<<<<<<<....>>>....<<......>>)))))
).....]...<<<<..<<<.....>>>.>>>>....]]]...}}}}..]]
].<<<....<<<....<<<<<<<<.......>>>>>>>>>>>......>>
>...<<<.<<<<....>>>>....>>>.}}.<<.<<<..........>>>
.>>.<.<<<..>>>.>...]]]]]].........<<<....<<<.....>
>>..>>>...............<<<<<<<<....>>>>>.>>>......<
<..<...........>..>>.........<<<<<........<<<<.<<<
.<<....>>>>>....>>>>.>>>>>..))))))]]]].........[[[
{{.......{{...[[[.{{....<<<<<<.<<..>>.>>>>>>....<<
<<<<.<..>>>>>>>...<<<<<.<<.......<<...<.......>..<
<<.....>>>....>>......>>.>>..>>>.........[[[..((((
((((....>>>>>>>>.)))))))).]]].....}}....<<<<<<.<<.
..<<<<..<<..<<<<<<.<...<<<......>>>......>.>>>>>>.
.>>.......<<....>>...>>>>...>>>>>.>>>...]]]...}}..
....<<<<<<<...<...<<<<.........>>>>...>>>>>>>>....
......<<<.<<.<<<..<<<<<<<<.<<<........>>>>>>>>>>>.
.>>>...<<..}}>>...>>.....>>>.]]].<<<......<<<<....
>>>>....>>>..]]]]........<<<<<<<<<....>>>>>>>>>...
......

Receptor-Ligand Complex Structure

Structure summary

• PDB: 7wtm In vitro structural maturation of an early stage pre-40S particle coupled with U3 snoRNA release and central pseudoknot formation.
• Resolution: 3.5 Å
• Binding residue (original residue number in PDB): H197 S199 R200 G203 G207 D209 G210 K213 L226 G253 P256 K258 N262 R269
• Binding residue (residue number reindexed from 1): H105 S107 R108 G111 G115 D117 G118 K121 L134 G161 P164 K166 N170 R177

Gene Ontology

Molecular Function

• GO:0003723 RNA binding
• GO:0042134 rRNA primary transcript binding
• GO:0051082 unfolded protein binding

Biological Process

• GO:0000056 ribosomal small subunit export from nucleus
• GO:0000447 endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA)
• GO:0000472 endonucleolytic cleavage to generate mature 5'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA)
• GO:0042254 ribosome biogenesis
• GO:0042255 ribosome assembly
• GO:0043248 proteasome assembly

Cellular Component

• GO:0005634 nucleus
• GO:0005730 nucleolus
• GO:0005737 cytoplasm
• GO:0030686 90S preribosome

External links

• PDB: RCSB:7wtm, PDBe:7wtm, PDBj:7wtm
• PDBsum: 7wtm
• PubMed: 36263816
• UniProt: Q99216|PNO1_YEAST Pre-rRNA-processing protein PNO1 (Gene Name=PNO1)